CLOSING DATE: For full consideration, all application materials must be received by November 11, 2016 (open until filled)

POSITION PURPOSE: The Area Cooperative Extension (CE) advisor for agronomic cropping systems/weed science will conduct a multi-county extension, education and applied research program in Glenn, Butte and Tehama Counties. Primary crops in this region include forage crops, alfalfa, corn, and wheat....

In addition to the well-known rice weeds we deal with every year, there are a couple of weeds I want to bring to your attention this year. One is an invasive and the other has been with us for a while.

The winged primrose willow was identified in 2011 in several rice fields near Richvale in Butte County. Since then it has spread to several other fields, up to 3.5 miles south of Richvale. Winged primrose willow was recently given an “A” pest rating by CDFA. What this...

Figure 1. Pigweed is becoming a common site in established alfalfa fields in many areas of California.

Alfalfa is an excellent competitor with weeds. There is no better weed control method than a dense stand of alfalfa. However, even with a good stand, some weeds can get a foothold and infest the crop reducing its marketability. Most growers have an effective program to control winter annual weeds with a dormant season herbicide application. When it comes to summer annual weeds, grasses, such as green and yellow foxtail and barnyardgrass (also called watergrass), have historically been the most troublesome. While these weeds continue to be a major issue, there also appears to be an increase in pigweeds (both redroot and Palmer amaranth) in many areas of the state including the Central Valley, Intermountain Region and High...